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Derek, but on Wednesday's show the lie detector results and a last-minute confession from the 24-year-old revealed much worse.

This is Donna, it was her daughter that FAILED the lie detector

Donna with last minute confession

Donna (Mother) appeared in the segment first and revealed that she and her daughter Kelly made up with each other since their last appearance on ITV, thanks to Jeremy Kyle's after-show care.

Jeremy , who was seemingly impressed that 70-year-old 'love god' Derek had two women fighting over him, soon found out that the couple have been together five-and-a-half years, before all of this trouble had started.

And there he is 'love god', Derek

Now, all they had to do was clear up rumours that Derek had slept with his step-daughter Kelly.

Joined by Claire (Donna's former friend) and Kyle (Kelly's boyfriend and Claire's cousin) they eventually got to the bottom of the problems.

After revealing that she is ready to marry Derek, Donna explained why they fear their wedding day might be ruined, saying "because I know she'll turn up."

Almost ready to disown her daughter, she revealed: "When we went to the mediation it was fine. But now they have talked [flirtatiously].

"They are about as subtle as a house brick."

Donna was not happy

"I tried to see if we could work things out but it hasn't happened," shouted Kelly, who denied having sex with Derek.

"How long have you been saying that you've been getting married for? One minute it's on, next minute it's off."

Danna and Claire used to be friends

Meet the other Kyle

The show then had a comical moment when Jeremy was confused by the impromptu introduction of a guest, when an audience member piped up.

"Who is he?" shouted Jeremy, in the moment you can see in the video above.

"Claire's ex-boyfriend," replied the panel, as the audience laughed.

"Who is Claire?" added Jeremy. "Hold on a minute? Who are you?"

The grey suited guest explained: "I'm hear supporting Donna."

"I don't even know who you are!" continued the host.

The lie detector results have everyone in shock

There are some in tears

Kyle then stormed onto the stage, with this classic line: "I wouldn't have sex with her if I had to make more human race!"

Kelly then claimed that the only feelings she has for Derek is that she sees him as a 'father figure', as Jeremy unveiled a statement from the man in question.

It read: "Kelly is a vindictive and toxic woman who has caused nothing but problems for me and Donna.

"She has been spreading rumours around that I have slept with her... she is not invited to the wedding."

The lie detector results are in!

Note to Donna, don't cross Kelly

The lie detector then revealed that Kelly HAD been intimate with her step-dad, Derek.

Before the results Kelly also claimed that she had been with the 70-year-old man "on several occasions" and that her mother was there.

It is also claimed that Derek touched and kissed Donna's breasts in the bath, and that Kelly 'helped Derek get an erection'.

All hell then broke loose on the stage as they ran off, with the host again asking "Who are you? Why is he here?" to the grey suit man.

"You stay out of my life," shouted Donna, as it's revealed that Kelly has now failed the lie detector three times on the Jeremy Kyle show.